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Finding the Fourth Proportional to 302,872.40, 453,816.53 and 260,553.95

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Solution

The fourth proportional to 302,872.40, 453,816.53 and 260,553.95 is: 390,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,872.40 : 453,816.53 = 260,553.95 : x
  2. Step 2: Convert to fraction form
    302,872.40/453,816.53 = 260,553.95/x
  3. Step 3: Cross multiply
    302,872.40x = 453,816.53 × 260,553.95
  4. Step 4: Simplify right side
    302,872.40x = 118,243,688,164.02
  5. Step 5: Solve for x
    x = 118,243,688,164.02/302,872.40
  6. Step 6: Final answer
    x = 390,407.60

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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.