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Finding the Fourth Proportional to 310,167.80, 465,332.70 and 99,810.80

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Solution

The fourth proportional to 310,167.80, 465,332.70 and 99,810.80 is: 149,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,167.80 : 465,332.70 = 99,810.80 : x
  2. Step 2: Convert to fraction form
    310,167.80/465,332.70 = 99,810.80/x
  3. Step 3: Cross multiply
    310,167.80x = 465,332.70 × 99,810.80
  4. Step 4: Simplify right side
    310,167.80x = 46,445,229,053.16
  5. Step 5: Solve for x
    x = 46,445,229,053.16/310,167.80
  6. Step 6: Final answer
    x = 149,742.27

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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.