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Finding the Fourth Proportional to 209,223.60, 288,752.76 and 124,339.92

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Solution

The fourth proportional to 209,223.60, 288,752.76 and 124,339.92 is: 171,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,223.60 : 288,752.76 = 124,339.92 : x
  2. Step 2: Convert to fraction form
    209,223.60/288,752.76 = 124,339.92/x
  3. Step 3: Cross multiply
    209,223.60x = 288,752.76 × 124,339.92
  4. Step 4: Simplify right side
    209,223.60x = 35,903,495,078.18
  5. Step 5: Solve for x
    x = 35,903,495,078.18/209,223.60
  6. Step 6: Final answer
    x = 171,603.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.