Home / 283,039.32-390,432.06-176,871

Finding the Fourth Proportional to 283,039.32, 390,432.06 and 176,871

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Solution

The fourth proportional to 283,039.32, 390,432.06 and 176,871 is: 243,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,039.32 : 390,432.06 = 176,871 : x
  2. Step 2: Convert to fraction form
    283,039.32/390,432.06 = 176,871/x
  3. Step 3: Cross multiply
    283,039.32x = 390,432.06 × 176,871
  4. Step 4: Simplify right side
    283,039.32x = 69,056,108,884.26
  5. Step 5: Solve for x
    x = 69,056,108,884.26/283,039.32
  6. Step 6: Final answer
    x = 243,980.62

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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.