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Finding the Fourth Proportional to 361,641.60, 542,462.40 and 291,657.60

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Solution

The fourth proportional to 361,641.60, 542,462.40 and 291,657.60 is: 437,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,641.60 : 542,462.40 = 291,657.60 : x
  2. Step 2: Convert to fraction form
    361,641.60/542,462.40 = 291,657.60/x
  3. Step 3: Cross multiply
    361,641.60x = 542,462.40 × 291,657.60
  4. Step 4: Simplify right side
    361,641.60x = 158,213,281,674.24
  5. Step 5: Solve for x
    x = 158,213,281,674.24/361,641.60
  6. Step 6: Final answer
    x = 437,486.40

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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.