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Finding the Fourth Proportional to 369,019.80, 553,427.64 and 144,334.71

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Solution

The fourth proportional to 369,019.80, 553,427.64 and 144,334.71 is: 216,462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,019.80 : 553,427.64 = 144,334.71 : x
  2. Step 2: Convert to fraction form
    369,019.80/553,427.64 = 144,334.71/x
  3. Step 3: Cross multiply
    369,019.80x = 553,427.64 × 144,334.71
  4. Step 4: Simplify right side
    369,019.80x = 79,878,817,925.38
  5. Step 5: Solve for x
    x = 79,878,817,925.38/369,019.80
  6. Step 6: Final answer
    x = 216,462.15

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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.