Home / 438,059.04-657,086.64-171,631.40

Finding the Fourth Proportional to 438,059.04, 657,086.64 and 171,631.40

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Solution

The fourth proportional to 438,059.04, 657,086.64 and 171,631.40 is: 257,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,059.04 : 657,086.64 = 171,631.40 : x
  2. Step 2: Convert to fraction form
    438,059.04/657,086.64 = 171,631.40/x
  3. Step 3: Cross multiply
    438,059.04x = 657,086.64 × 171,631.40
  4. Step 4: Simplify right side
    438,059.04x = 112,776,699,944.50
  5. Step 5: Solve for x
    x = 112,776,699,944.50/438,059.04
  6. Step 6: Final answer
    x = 257,446.35

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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.