Home / 388,966.40-583,219.20-202,342.40

Finding the Fourth Proportional to 388,966.40, 583,219.20 and 202,342.40

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Solution

The fourth proportional to 388,966.40, 583,219.20 and 202,342.40 is: 303,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,966.40 : 583,219.20 = 202,342.40 : x
  2. Step 2: Convert to fraction form
    388,966.40/583,219.20 = 202,342.40/x
  3. Step 3: Cross multiply
    388,966.40x = 583,219.20 × 202,342.40
  4. Step 4: Simplify right side
    388,966.40x = 118,009,972,654.08
  5. Step 5: Solve for x
    x = 118,009,972,654.08/388,966.40
  6. Step 6: Final answer
    x = 303,393.74

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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.