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Finding the Fourth Proportional to 387,271.84, 534,494.48 and 236,457.12

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Solution

The fourth proportional to 387,271.84, 534,494.48 and 236,457.12 is: 326,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,271.84 : 534,494.48 = 236,457.12 : x
  2. Step 2: Convert to fraction form
    387,271.84/534,494.48 = 236,457.12/x
  3. Step 3: Cross multiply
    387,271.84x = 534,494.48 × 236,457.12
  4. Step 4: Simplify right side
    387,271.84x = 126,385,025,396.70
  5. Step 5: Solve for x
    x = 126,385,025,396.70/387,271.84
  6. Step 6: Final answer
    x = 326,347.06

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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.