Home / 280,107.05-386,547.73-152,782.64

Finding the Fourth Proportional to 280,107.05, 386,547.73 and 152,782.64

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Solution

The fourth proportional to 280,107.05, 386,547.73 and 152,782.64 is: 210,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,107.05 : 386,547.73 = 152,782.64 : x
  2. Step 2: Convert to fraction form
    280,107.05/386,547.73 = 152,782.64/x
  3. Step 3: Cross multiply
    280,107.05x = 386,547.73 × 152,782.64
  4. Step 4: Simplify right side
    280,107.05x = 59,057,782,248.58
  5. Step 5: Solve for x
    x = 59,057,782,248.58/280,107.05
  6. Step 6: Final answer
    x = 210,840.04

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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.