Home / 280,829.90-421,246.65-112,364.30

Finding the Fourth Proportional to 280,829.90, 421,246.65 and 112,364.30

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Solution

The fourth proportional to 280,829.90, 421,246.65 and 112,364.30 is: 168,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,829.90 : 421,246.65 = 112,364.30 : x
  2. Step 2: Convert to fraction form
    280,829.90/421,246.65 = 112,364.30/x
  3. Step 3: Cross multiply
    280,829.90x = 421,246.65 × 112,364.30
  4. Step 4: Simplify right side
    280,829.90x = 47,333,084,954.60
  5. Step 5: Solve for x
    x = 47,333,084,954.60/280,829.90
  6. Step 6: Final answer
    x = 168,547.17

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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.