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Finding the Fourth Proportional to 438,191.86, 657,373.01 and 168,300.26

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Solution

The fourth proportional to 438,191.86, 657,373.01 and 168,300.26 is: 252,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,191.86 : 657,373.01 = 168,300.26 : x
  2. Step 2: Convert to fraction form
    438,191.86/657,373.01 = 168,300.26/x
  3. Step 3: Cross multiply
    438,191.86x = 657,373.01 × 168,300.26
  4. Step 4: Simplify right side
    438,191.86x = 110,636,048,499.98
  5. Step 5: Solve for x
    x = 110,636,048,499.98/438,191.86
  6. Step 6: Final answer
    x = 252,483.12

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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.