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Finding the Fourth Proportional to 478,768.32, 718,148.16 and 183,280.32

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Solution

The fourth proportional to 478,768.32, 718,148.16 and 183,280.32 is: 274,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,768.32 : 718,148.16 = 183,280.32 : x
  2. Step 2: Convert to fraction form
    478,768.32/718,148.16 = 183,280.32/x
  3. Step 3: Cross multiply
    478,768.32x = 718,148.16 × 183,280.32
  4. Step 4: Simplify right side
    478,768.32x = 131,622,424,572.21
  5. Step 5: Solve for x
    x = 131,622,424,572.21/478,768.32
  6. Step 6: Final answer
    x = 274,918.83

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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.