Home / 284,854.10-393,088.34-155,788.16

Finding the Fourth Proportional to 284,854.10, 393,088.34 and 155,788.16

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Solution

The fourth proportional to 284,854.10, 393,088.34 and 155,788.16 is: 214,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,854.10 : 393,088.34 = 155,788.16 : x
  2. Step 2: Convert to fraction form
    284,854.10/393,088.34 = 155,788.16/x
  3. Step 3: Cross multiply
    284,854.10x = 393,088.34 × 155,788.16
  4. Step 4: Simplify right side
    284,854.10x = 61,238,507,630.08
  5. Step 5: Solve for x
    x = 61,238,507,630.08/284,854.10
  6. Step 6: Final answer
    x = 214,982.02

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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.