Home / 388,638.81-583,036.79-163,999.76

Finding the Fourth Proportional to 388,638.81, 583,036.79 and 163,999.76

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Solution

The fourth proportional to 388,638.81, 583,036.79 and 163,999.76 is: 246,032.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,638.81 : 583,036.79 = 163,999.76 : x
  2. Step 2: Convert to fraction form
    388,638.81/583,036.79 = 163,999.76/x
  3. Step 3: Cross multiply
    388,638.81x = 583,036.79 × 163,999.76
  4. Step 4: Simplify right side
    388,638.81x = 95,617,889,895.99
  5. Step 5: Solve for x
    x = 95,617,889,895.99/388,638.81
  6. Step 6: Final answer
    x = 246,032.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.