Home / 257,458.15-385,684.47-122,329.92

Finding the Fourth Proportional to 257,458.15, 385,684.47 and 122,329.92

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Solution

The fourth proportional to 257,458.15, 385,684.47 and 122,329.92 is: 183,256.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,458.15 : 385,684.47 = 122,329.92 : x
  2. Step 2: Convert to fraction form
    257,458.15/385,684.47 = 122,329.92/x
  3. Step 3: Cross multiply
    257,458.15x = 385,684.47 × 122,329.92
  4. Step 4: Simplify right side
    257,458.15x = 47,180,750,360.34
  5. Step 5: Solve for x
    x = 47,180,750,360.34/257,458.15
  6. Step 6: Final answer
    x = 183,256.00

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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.