Home / 518,821.50-778,256.16-158,966.58

Finding the Fourth Proportional to 518,821.50, 778,256.16 and 158,966.58

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Solution

The fourth proportional to 518,821.50, 778,256.16 and 158,966.58 is: 238,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,821.50 : 778,256.16 = 158,966.58 : x
  2. Step 2: Convert to fraction form
    518,821.50/778,256.16 = 158,966.58/x
  3. Step 3: Cross multiply
    518,821.50x = 778,256.16 × 158,966.58
  4. Step 4: Simplify right side
    518,821.50x = 123,716,720,119.13
  5. Step 5: Solve for x
    x = 123,716,720,119.13/518,821.50
  6. Step 6: Final answer
    x = 238,457.20

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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.