Home / 388,981.40-583,241.70-202,357.40

Finding the Fourth Proportional to 388,981.40, 583,241.70 and 202,357.40

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Solution

The fourth proportional to 388,981.40, 583,241.70 and 202,357.40 is: 303,416.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,981.40 : 583,241.70 = 202,357.40 : x
  2. Step 2: Convert to fraction form
    388,981.40/583,241.70 = 202,357.40/x
  3. Step 3: Cross multiply
    388,981.40x = 583,241.70 × 202,357.40
  4. Step 4: Simplify right side
    388,981.40x = 118,023,273,983.58
  5. Step 5: Solve for x
    x = 118,023,273,983.58/388,981.40
  6. Step 6: Final answer
    x = 303,416.24

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1.5x scale

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.