Home / 343,215.12-473,637.04-209,079.12

Finding the Fourth Proportional to 343,215.12, 473,637.04 and 209,079.12

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Solution

The fourth proportional to 343,215.12, 473,637.04 and 209,079.12 is: 288,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,215.12 : 473,637.04 = 209,079.12 : x
  2. Step 2: Convert to fraction form
    343,215.12/473,637.04 = 209,079.12/x
  3. Step 3: Cross multiply
    343,215.12x = 473,637.04 × 209,079.12
  4. Step 4: Simplify right side
    343,215.12x = 99,027,615,522.60
  5. Step 5: Solve for x
    x = 99,027,615,522.60/343,215.12
  6. Step 6: Final answer
    x = 288,529.29

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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.