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Finding the Fourth Proportional to 293,698.20, 440,547.30 and 260,455.80

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Solution

The fourth proportional to 293,698.20, 440,547.30 and 260,455.80 is: 390,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,698.20 : 440,547.30 = 260,455.80 : x
  2. Step 2: Convert to fraction form
    293,698.20/440,547.30 = 260,455.80/x
  3. Step 3: Cross multiply
    293,698.20x = 440,547.30 × 260,455.80
  4. Step 4: Simplify right side
    293,698.20x = 114,743,099,459.34
  5. Step 5: Solve for x
    x = 114,743,099,459.34/293,698.20
  6. Step 6: Final answer
    x = 390,683.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.