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Finding the Fourth Proportional to 387,117.84, 534,281.32 and 236,302.48

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Solution

The fourth proportional to 387,117.84, 534,281.32 and 236,302.48 is: 326,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,117.84 : 534,281.32 = 236,302.48 : x
  2. Step 2: Convert to fraction form
    387,117.84/534,281.32 = 236,302.48/x
  3. Step 3: Cross multiply
    387,117.84x = 534,281.32 × 236,302.48
  4. Step 4: Simplify right side
    387,117.84x = 126,252,000,933.67
  5. Step 5: Solve for x
    x = 126,252,000,933.67/387,117.84
  6. Step 6: Final answer
    x = 326,133.25

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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.