Home / 424,831.80-637,249.32-172,117.08

Finding the Fourth Proportional to 424,831.80, 637,249.32 and 172,117.08

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Solution

The fourth proportional to 424,831.80, 637,249.32 and 172,117.08 is: 258,176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,831.80 : 637,249.32 = 172,117.08 : x
  2. Step 2: Convert to fraction form
    424,831.80/637,249.32 = 172,117.08/x
  3. Step 3: Cross multiply
    424,831.80x = 637,249.32 × 172,117.08
  4. Step 4: Simplify right side
    424,831.80x = 109,681,492,190.39
  5. Step 5: Solve for x
    x = 109,681,492,190.39/424,831.80
  6. Step 6: Final answer
    x = 258,176.28

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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.