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Finding the Fourth Proportional to 292,543.80, 438,815.70 and 168,127.80

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Solution

The fourth proportional to 292,543.80, 438,815.70 and 168,127.80 is: 252,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,543.80 : 438,815.70 = 168,127.80 : x
  2. Step 2: Convert to fraction form
    292,543.80/438,815.70 = 168,127.80/x
  3. Step 3: Cross multiply
    292,543.80x = 438,815.70 × 168,127.80
  4. Step 4: Simplify right side
    292,543.80x = 73,777,118,246.46
  5. Step 5: Solve for x
    x = 73,777,118,246.46/292,543.80
  6. Step 6: Final answer
    x = 252,191.70

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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.