Home / 282,817.85-390,278.66-155,492.46

Finding the Fourth Proportional to 282,817.85, 390,278.66 and 155,492.46

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Solution

The fourth proportional to 282,817.85, 390,278.66 and 155,492.46 is: 214,574.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,817.85 : 390,278.66 = 155,492.46 : x
  2. Step 2: Convert to fraction form
    282,817.85/390,278.66 = 155,492.46/x
  3. Step 3: Cross multiply
    282,817.85x = 390,278.66 × 155,492.46
  4. Step 4: Simplify right side
    282,817.85x = 60,685,388,151.44
  5. Step 5: Solve for x
    x = 60,685,388,151.44/282,817.85
  6. Step 6: Final answer
    x = 214,574.11

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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.