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Finding the Fourth Proportional to 555,280.68, 832,971.84 and 155,918.76

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Solution

The fourth proportional to 555,280.68, 832,971.84 and 155,918.76 is: 233,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,280.68 : 832,971.84 = 155,918.76 : x
  2. Step 2: Convert to fraction form
    555,280.68/832,971.84 = 155,918.76/x
  3. Step 3: Cross multiply
    555,280.68x = 832,971.84 × 155,918.76
  4. Step 4: Simplify right side
    555,280.68x = 129,875,936,407.72
  5. Step 5: Solve for x
    x = 129,875,936,407.72/555,280.68
  6. Step 6: Final answer
    x = 233,892.41

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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.