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Finding the Fourth Proportional to 260,048.70, 390,073.05 and 185,010.30

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Solution

The fourth proportional to 260,048.70, 390,073.05 and 185,010.30 is: 277,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,048.70 : 390,073.05 = 185,010.30 : x
  2. Step 2: Convert to fraction form
    260,048.70/390,073.05 = 185,010.30/x
  3. Step 3: Cross multiply
    260,048.70x = 390,073.05 × 185,010.30
  4. Step 4: Simplify right side
    260,048.70x = 72,167,532,002.42
  5. Step 5: Solve for x
    x = 72,167,532,002.42/260,048.70
  6. Step 6: Final answer
    x = 277,515.45

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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.