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Finding the Fourth Proportional to 346,488.75, 478,154.48 and 187,512.75

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Solution

The fourth proportional to 346,488.75, 478,154.48 and 187,512.75 is: 258,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,488.75 : 478,154.48 = 187,512.75 : x
  2. Step 2: Convert to fraction form
    346,488.75/478,154.48 = 187,512.75/x
  3. Step 3: Cross multiply
    346,488.75x = 478,154.48 × 187,512.75
  4. Step 4: Simplify right side
    346,488.75x = 89,660,060,532.06
  5. Step 5: Solve for x
    x = 89,660,060,532.06/346,488.75
  6. Step 6: Final answer
    x = 258,767.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.