Home / 260,302.16-390,007.63-142,056.53

Finding the Fourth Proportional to 260,302.16, 390,007.63 and 142,056.53

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Solution

The fourth proportional to 260,302.16, 390,007.63 and 142,056.53 is: 212,841.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,302.16 : 390,007.63 = 142,056.53 : x
  2. Step 2: Convert to fraction form
    260,302.16/390,007.63 = 142,056.53/x
  3. Step 3: Cross multiply
    260,302.16x = 390,007.63 × 142,056.53
  4. Step 4: Simplify right side
    260,302.16x = 55,403,130,591.32
  5. Step 5: Solve for x
    x = 55,403,130,591.32/260,302.16
  6. Step 6: Final answer
    x = 212,841.61

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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.