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Finding the Fourth Proportional to 272,762.76, 376,385.70 and 151,915.32

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Solution

The fourth proportional to 272,762.76, 376,385.70 and 151,915.32 is: 209,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,762.76 : 376,385.70 = 151,915.32 : x
  2. Step 2: Convert to fraction form
    272,762.76/376,385.70 = 151,915.32/x
  3. Step 3: Cross multiply
    272,762.76x = 376,385.70 × 151,915.32
  4. Step 4: Simplify right side
    272,762.76x = 57,178,754,058.92
  5. Step 5: Solve for x
    x = 57,178,754,058.92/272,762.76
  6. Step 6: Final answer
    x = 209,628.15

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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.