Home / 280,127.04-420,265.44-122,368.32

Finding the Fourth Proportional to 280,127.04, 420,265.44 and 122,368.32

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Solution

The fourth proportional to 280,127.04, 420,265.44 and 122,368.32 is: 183,585.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,127.04 : 420,265.44 = 122,368.32 : x
  2. Step 2: Convert to fraction form
    280,127.04/420,265.44 = 122,368.32/x
  3. Step 3: Cross multiply
    280,127.04x = 420,265.44 × 122,368.32
  4. Step 4: Simplify right side
    280,127.04x = 51,427,175,846.86
  5. Step 5: Solve for x
    x = 51,427,175,846.86/280,127.04
  6. Step 6: Final answer
    x = 183,585.19

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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.