Home / 385,109.04-577,441.21-118,798.05

Finding the Fourth Proportional to 385,109.04, 577,441.21 and 118,798.05

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Solution

The fourth proportional to 385,109.04, 577,441.21 and 118,798.05 is: 178,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,109.04 : 577,441.21 = 118,798.05 : x
  2. Step 2: Convert to fraction form
    385,109.04/577,441.21 = 118,798.05/x
  3. Step 3: Cross multiply
    385,109.04x = 577,441.21 × 118,798.05
  4. Step 4: Simplify right side
    385,109.04x = 68,598,889,737.64
  5. Step 5: Solve for x
    x = 68,598,889,737.64/385,109.04
  6. Step 6: Final answer
    x = 178,128.48

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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.