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Finding the Fourth Proportional to 283,368, 391,032.64 and 162,503.40

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Solution

The fourth proportional to 283,368, 391,032.64 and 162,503.40 is: 224,245.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,368 : 391,032.64 = 162,503.40 : x
  2. Step 2: Convert to fraction form
    283,368/391,032.64 = 162,503.40/x
  3. Step 3: Cross multiply
    283,368x = 391,032.64 × 162,503.40
  4. Step 4: Simplify right side
    283,368x = 63,544,133,510.98
  5. Step 5: Solve for x
    x = 63,544,133,510.98/283,368
  6. Step 6: Final answer
    x = 224,245.98

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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.