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Finding the Fourth Proportional to 315,359.47, 473,101.50 and 115,681.70

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Solution

The fourth proportional to 315,359.47, 473,101.50 and 115,681.70 is: 173,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,359.47 : 473,101.50 = 115,681.70 : x
  2. Step 2: Convert to fraction form
    315,359.47/473,101.50 = 115,681.70/x
  3. Step 3: Cross multiply
    315,359.47x = 473,101.50 × 115,681.70
  4. Step 4: Simplify right side
    315,359.47x = 54,729,185,792.55
  5. Step 5: Solve for x
    x = 54,729,185,792.55/315,359.47
  6. Step 6: Final answer
    x = 173,545.40

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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.