Home / 403,707.16-557,089.14-242,569

Finding the Fourth Proportional to 403,707.16, 557,089.14 and 242,569

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Solution

The fourth proportional to 403,707.16, 557,089.14 and 242,569 is: 334,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,707.16 : 557,089.14 = 242,569 : x
  2. Step 2: Convert to fraction form
    403,707.16/557,089.14 = 242,569/x
  3. Step 3: Cross multiply
    403,707.16x = 557,089.14 × 242,569
  4. Step 4: Simplify right side
    403,707.16x = 135,132,555,600.66
  5. Step 5: Solve for x
    x = 135,132,555,600.66/403,707.16
  6. Step 6: Final answer
    x = 334,729.15

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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.