Home / 388,746.53-583,199.01-220,342.05

Finding the Fourth Proportional to 388,746.53, 583,199.01 and 220,342.05

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Solution

The fourth proportional to 388,746.53, 583,199.01 and 220,342.05 is: 330,557.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,746.53 : 583,199.01 = 220,342.05 : x
  2. Step 2: Convert to fraction form
    388,746.53/583,199.01 = 220,342.05/x
  3. Step 3: Cross multiply
    388,746.53x = 583,199.01 × 220,342.05
  4. Step 4: Simplify right side
    388,746.53x = 128,503,265,421.37
  5. Step 5: Solve for x
    x = 128,503,265,421.37/388,746.53
  6. Step 6: Final answer
    x = 330,557.98

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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.