Home / 215,630.75-297,572.47-118,838.15

Finding the Fourth Proportional to 215,630.75, 297,572.47 and 118,838.15

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Solution

The fourth proportional to 215,630.75, 297,572.47 and 118,838.15 is: 163,997.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,630.75 : 297,572.47 = 118,838.15 : x
  2. Step 2: Convert to fraction form
    215,630.75/297,572.47 = 118,838.15/x
  3. Step 3: Cross multiply
    215,630.75x = 297,572.47 × 118,838.15
  4. Step 4: Simplify right side
    215,630.75x = 35,362,961,981.72
  5. Step 5: Solve for x
    x = 35,362,961,981.72/215,630.75
  6. Step 6: Final answer
    x = 163,997.77

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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.