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Finding the Fourth Proportional to 288,353.84, 397,962.12 and 239,870.16

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Solution

The fourth proportional to 288,353.84, 397,962.12 and 239,870.16 is: 331,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,353.84 : 397,962.12 = 239,870.16 : x
  2. Step 2: Convert to fraction form
    288,353.84/397,962.12 = 239,870.16/x
  3. Step 3: Cross multiply
    288,353.84x = 397,962.12 × 239,870.16
  4. Step 4: Simplify right side
    288,353.84x = 95,459,237,398.34
  5. Step 5: Solve for x
    x = 95,459,237,398.34/288,353.84
  6. Step 6: Final answer
    x = 331,048.95

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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.