Home / 315,124.30-472,465.02-115,418.74

Finding the Fourth Proportional to 315,124.30, 472,465.02 and 115,418.74

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Solution

The fourth proportional to 315,124.30, 472,465.02 and 115,418.74 is: 173,047.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,124.30 : 472,465.02 = 115,418.74 : x
  2. Step 2: Convert to fraction form
    315,124.30/472,465.02 = 115,418.74/x
  3. Step 3: Cross multiply
    315,124.30x = 472,465.02 × 115,418.74
  4. Step 4: Simplify right side
    315,124.30x = 54,531,317,302.47
  5. Step 5: Solve for x
    x = 54,531,317,302.47/315,124.30
  6. Step 6: Final answer
    x = 173,047.01

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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.