Home / 257,210.10-354,962.79-155,234.07

Finding the Fourth Proportional to 257,210.10, 354,962.79 and 155,234.07

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Solution

The fourth proportional to 257,210.10, 354,962.79 and 155,234.07 is: 214,230.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,210.10 : 354,962.79 = 155,234.07 : x
  2. Step 2: Convert to fraction form
    257,210.10/354,962.79 = 155,234.07/x
  3. Step 3: Cross multiply
    257,210.10x = 354,962.79 × 155,234.07
  4. Step 4: Simplify right side
    257,210.10x = 55,102,318,590.26
  5. Step 5: Solve for x
    x = 55,102,318,590.26/257,210.10
  6. Step 6: Final answer
    x = 214,230.77

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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.