Home / 315,981.38-473,875.68-166,140.38

Finding the Fourth Proportional to 315,981.38, 473,875.68 and 166,140.38

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Solution

The fourth proportional to 315,981.38, 473,875.68 and 166,140.38 is: 249,159.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,981.38 : 473,875.68 = 166,140.38 : x
  2. Step 2: Convert to fraction form
    315,981.38/473,875.68 = 166,140.38/x
  3. Step 3: Cross multiply
    315,981.38x = 473,875.68 × 166,140.38
  4. Step 4: Simplify right side
    315,981.38x = 78,729,885,547.96
  5. Step 5: Solve for x
    x = 78,729,885,547.96/315,981.38
  6. Step 6: Final answer
    x = 249,159.89

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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.