Home / 292,432.14-438,689.99-90,045.34

Finding the Fourth Proportional to 292,432.14, 438,689.99 and 90,045.34

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Solution

The fourth proportional to 292,432.14, 438,689.99 and 90,045.34 is: 135,080.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,432.14 : 438,689.99 = 90,045.34 : x
  2. Step 2: Convert to fraction form
    292,432.14/438,689.99 = 90,045.34/x
  3. Step 3: Cross multiply
    292,432.14x = 438,689.99 × 90,045.34
  4. Step 4: Simplify right side
    292,432.14x = 39,501,988,432.54
  5. Step 5: Solve for x
    x = 39,501,988,432.54/292,432.14
  6. Step 6: Final answer
    x = 135,080.87

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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.