Home / 385,573.32-578,354.04-105,089.76

Finding the Fourth Proportional to 385,573.32, 578,354.04 and 105,089.76

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Solution

The fourth proportional to 385,573.32, 578,354.04 and 105,089.76 is: 157,633.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,573.32 : 578,354.04 = 105,089.76 : x
  2. Step 2: Convert to fraction form
    385,573.32/578,354.04 = 105,089.76/x
  3. Step 3: Cross multiply
    385,573.32x = 578,354.04 × 105,089.76
  4. Step 4: Simplify right side
    385,573.32x = 60,779,087,258.63
  5. Step 5: Solve for x
    x = 60,779,087,258.63/385,573.32
  6. Step 6: Final answer
    x = 157,633.02

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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.