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Finding the Fourth Proportional to 510,477.57, 765,831.58 and 168,920.12

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Solution

The fourth proportional to 510,477.57, 765,831.58 and 168,920.12 is: 253,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,477.57 : 765,831.58 = 168,920.12 : x
  2. Step 2: Convert to fraction form
    510,477.57/765,831.58 = 168,920.12/x
  3. Step 3: Cross multiply
    510,477.57x = 765,831.58 × 168,920.12
  4. Step 4: Simplify right side
    510,477.57x = 129,364,363,885.67
  5. Step 5: Solve for x
    x = 129,364,363,885.67/510,477.57
  6. Step 6: Final answer
    x = 253,418.31

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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.