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Finding the Fourth Proportional to 292,100.70, 438,345.45 and 165,740.70

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Solution

The fourth proportional to 292,100.70, 438,345.45 and 165,740.70 is: 248,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,100.70 : 438,345.45 = 165,740.70 : x
  2. Step 2: Convert to fraction form
    292,100.70/438,345.45 = 165,740.70/x
  3. Step 3: Cross multiply
    292,100.70x = 438,345.45 × 165,740.70
  4. Step 4: Simplify right side
    292,100.70x = 72,651,681,724.82
  5. Step 5: Solve for x
    x = 72,651,681,724.82/292,100.70
  6. Step 6: Final answer
    x = 248,721.35

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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.