Home / 388,730.40-583,095.60-222,401.76

Finding the Fourth Proportional to 388,730.40, 583,095.60 and 222,401.76

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Solution

The fourth proportional to 388,730.40, 583,095.60 and 222,401.76 is: 333,602.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,730.40 : 583,095.60 = 222,401.76 : x
  2. Step 2: Convert to fraction form
    388,730.40/583,095.60 = 222,401.76/x
  3. Step 3: Cross multiply
    388,730.40x = 583,095.60 × 222,401.76
  4. Step 4: Simplify right side
    388,730.40x = 129,681,487,688.26
  5. Step 5: Solve for x
    x = 129,681,487,688.26/388,730.40
  6. Step 6: Final answer
    x = 333,602.64

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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.