Home / 287,700.03-397,011.51-160,351.02

Finding the Fourth Proportional to 287,700.03, 397,011.51 and 160,351.02

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Solution

The fourth proportional to 287,700.03, 397,011.51 and 160,351.02 is: 221,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,700.03 : 397,011.51 = 160,351.02 : x
  2. Step 2: Convert to fraction form
    287,700.03/397,011.51 = 160,351.02/x
  3. Step 3: Cross multiply
    287,700.03x = 397,011.51 × 160,351.02
  4. Step 4: Simplify right side
    287,700.03x = 63,661,200,580.24
  5. Step 5: Solve for x
    x = 63,661,200,580.24/287,700.03
  6. Step 6: Final answer
    x = 221,276.31

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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.