Home / 385,320.60-577,981.74-207,911.16

Finding the Fourth Proportional to 385,320.60, 577,981.74 and 207,911.16

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Solution

The fourth proportional to 385,320.60, 577,981.74 and 207,911.16 is: 311,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,320.60 : 577,981.74 = 207,911.16 : x
  2. Step 2: Convert to fraction form
    385,320.60/577,981.74 = 207,911.16/x
  3. Step 3: Cross multiply
    385,320.60x = 577,981.74 × 207,911.16
  4. Step 4: Simplify right side
    385,320.60x = 120,168,854,022.22
  5. Step 5: Solve for x
    x = 120,168,854,022.22/385,320.60
  6. Step 6: Final answer
    x = 311,867.19

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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.