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Finding the Fourth Proportional to 461,334.72, 636,642 and 260,130.72

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Solution

The fourth proportional to 461,334.72, 636,642 and 260,130.72 is: 358,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,334.72 : 636,642 = 260,130.72 : x
  2. Step 2: Convert to fraction form
    461,334.72/636,642 = 260,130.72/x
  3. Step 3: Cross multiply
    461,334.72x = 636,642 × 260,130.72
  4. Step 4: Simplify right side
    461,334.72x = 165,610,141,842.24
  5. Step 5: Solve for x
    x = 165,610,141,842.24/461,334.72
  6. Step 6: Final answer
    x = 358,980.44

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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.