Home / 387,316.16-534,482.09-215,244.83

Finding the Fourth Proportional to 387,316.16, 534,482.09 and 215,244.83

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Solution

The fourth proportional to 387,316.16, 534,482.09 and 215,244.83 is: 297,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,316.16 : 534,482.09 = 215,244.83 : x
  2. Step 2: Convert to fraction form
    387,316.16/534,482.09 = 215,244.83/x
  3. Step 3: Cross multiply
    387,316.16x = 534,482.09 × 215,244.83
  4. Step 4: Simplify right side
    387,316.16x = 115,044,502,851.46
  5. Step 5: Solve for x
    x = 115,044,502,851.46/387,316.16
  6. Step 6: Final answer
    x = 297,029.96

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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.