Home / 285,061.07-426,739.74-172,400.50

Finding the Fourth Proportional to 285,061.07, 426,739.74 and 172,400.50

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Solution

The fourth proportional to 285,061.07, 426,739.74 and 172,400.50 is: 258,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,061.07 : 426,739.74 = 172,400.50 : x
  2. Step 2: Convert to fraction form
    285,061.07/426,739.74 = 172,400.50/x
  3. Step 3: Cross multiply
    285,061.07x = 426,739.74 × 172,400.50
  4. Step 4: Simplify right side
    285,061.07x = 73,570,145,402.55
  5. Step 5: Solve for x
    x = 73,570,145,402.55/285,061.07
  6. Step 6: Final answer
    x = 258,085.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.