Home / 385,317.60-577,977.24-207,908.16

Finding the Fourth Proportional to 385,317.60, 577,977.24 and 207,908.16

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Solution

The fourth proportional to 385,317.60, 577,977.24 and 207,908.16 is: 311,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,317.60 : 577,977.24 = 207,908.16 : x
  2. Step 2: Convert to fraction form
    385,317.60/577,977.24 = 207,908.16/x
  3. Step 3: Cross multiply
    385,317.60x = 577,977.24 × 207,908.16
  4. Step 4: Simplify right side
    385,317.60x = 120,166,184,490.28
  5. Step 5: Solve for x
    x = 120,166,184,490.28/385,317.60
  6. Step 6: Final answer
    x = 311,862.69

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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.