Home / 387,002.34-534,068.46-214,931.40

Finding the Fourth Proportional to 387,002.34, 534,068.46 and 214,931.40

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Solution

The fourth proportional to 387,002.34, 534,068.46 and 214,931.40 is: 296,608.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,002.34 : 534,068.46 = 214,931.40 : x
  2. Step 2: Convert to fraction form
    387,002.34/534,068.46 = 214,931.40/x
  3. Step 3: Cross multiply
    387,002.34x = 534,068.46 × 214,931.40
  4. Step 4: Simplify right side
    387,002.34x = 114,788,081,803.64
  5. Step 5: Solve for x
    x = 114,788,081,803.64/387,002.34
  6. Step 6: Final answer
    x = 296,608.24

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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.