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Finding the Fourth Proportional to 375,261.60, 561,663.60 and 291,703.20

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Solution

The fourth proportional to 375,261.60, 561,663.60 and 291,703.20 is: 436,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,261.60 : 561,663.60 = 291,703.20 : x
  2. Step 2: Convert to fraction form
    375,261.60/561,663.60 = 291,703.20/x
  3. Step 3: Cross multiply
    375,261.60x = 561,663.60 × 291,703.20
  4. Step 4: Simplify right side
    375,261.60x = 163,839,069,443.52
  5. Step 5: Solve for x
    x = 163,839,069,443.52/375,261.60
  6. Step 6: Final answer
    x = 436,599.61

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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.