Home / 438,188.12-657,282.18-105,764.12

Finding the Fourth Proportional to 438,188.12, 657,282.18 and 105,764.12

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Solution

The fourth proportional to 438,188.12, 657,282.18 and 105,764.12 is: 158,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,188.12 : 657,282.18 = 105,764.12 : x
  2. Step 2: Convert to fraction form
    438,188.12/657,282.18 = 105,764.12/x
  3. Step 3: Cross multiply
    438,188.12x = 657,282.18 × 105,764.12
  4. Step 4: Simplify right side
    438,188.12x = 69,516,868,193.40
  5. Step 5: Solve for x
    x = 69,516,868,193.40/438,188.12
  6. Step 6: Final answer
    x = 158,646.17

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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.