Home / 282,983.40-390,515.32-160,499.16

Finding the Fourth Proportional to 282,983.40, 390,515.32 and 160,499.16

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Solution

The fourth proportional to 282,983.40, 390,515.32 and 160,499.16 is: 221,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,983.40 : 390,515.32 = 160,499.16 : x
  2. Step 2: Convert to fraction form
    282,983.40/390,515.32 = 160,499.16/x
  3. Step 3: Cross multiply
    282,983.40x = 390,515.32 × 160,499.16
  4. Step 4: Simplify right side
    282,983.40x = 62,677,380,827.13
  5. Step 5: Solve for x
    x = 62,677,380,827.13/282,983.40
  6. Step 6: Final answer
    x = 221,487.84

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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.