Home / 289,426.32-399,547.14-203,459.01

Finding the Fourth Proportional to 289,426.32, 399,547.14 and 203,459.01

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Solution

The fourth proportional to 289,426.32, 399,547.14 and 203,459.01 is: 280,871.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,426.32 : 399,547.14 = 203,459.01 : x
  2. Step 2: Convert to fraction form
    289,426.32/399,547.14 = 203,459.01/x
  3. Step 3: Cross multiply
    289,426.32x = 399,547.14 × 203,459.01
  4. Step 4: Simplify right side
    289,426.32x = 81,291,465,552.73
  5. Step 5: Solve for x
    x = 81,291,465,552.73/289,426.32
  6. Step 6: Final answer
    x = 280,871.02

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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.