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Finding the Fourth Proportional to 370,901.76, 556,346.88 and 149,280

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Solution

The fourth proportional to 370,901.76, 556,346.88 and 149,280 is: 223,917.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,901.76 : 556,346.88 = 149,280 : x
  2. Step 2: Convert to fraction form
    370,901.76/556,346.88 = 149,280/x
  3. Step 3: Cross multiply
    370,901.76x = 556,346.88 × 149,280
  4. Step 4: Simplify right side
    370,901.76x = 83,051,462,246.40
  5. Step 5: Solve for x
    x = 83,051,462,246.40/370,901.76
  6. Step 6: Final answer
    x = 223,917.68

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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.