Home / 261,356.02-391,730.28-118,987.18

Finding the Fourth Proportional to 261,356.02, 391,730.28 and 118,987.18

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Solution

The fourth proportional to 261,356.02, 391,730.28 and 118,987.18 is: 178,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,356.02 : 391,730.28 = 118,987.18 : x
  2. Step 2: Convert to fraction form
    261,356.02/391,730.28 = 118,987.18/x
  3. Step 3: Cross multiply
    261,356.02x = 391,730.28 × 118,987.18
  4. Step 4: Simplify right side
    261,356.02x = 46,610,881,337.81
  5. Step 5: Solve for x
    x = 46,610,881,337.81/261,356.02
  6. Step 6: Final answer
    x = 178,342.48

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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.