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Finding the Fourth Proportional to 555,397.20, 833,009.40 and 155,998.80

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Solution

The fourth proportional to 555,397.20, 833,009.40 and 155,998.80 is: 233,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,397.20 : 833,009.40 = 155,998.80 : x
  2. Step 2: Convert to fraction form
    555,397.20/833,009.40 = 155,998.80/x
  3. Step 3: Cross multiply
    555,397.20x = 833,009.40 × 155,998.80
  4. Step 4: Simplify right side
    555,397.20x = 129,948,466,788.72
  5. Step 5: Solve for x
    x = 129,948,466,788.72/555,397.20
  6. Step 6: Final answer
    x = 233,973.93

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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.