Home / 380,526.28-570,740.10-143,838.16

Finding the Fourth Proportional to 380,526.28, 570,740.10 and 143,838.16

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Solution

The fourth proportional to 380,526.28, 570,740.10 and 143,838.16 is: 215,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,526.28 : 570,740.10 = 143,838.16 : x
  2. Step 2: Convert to fraction form
    380,526.28/570,740.10 = 143,838.16/x
  3. Step 3: Cross multiply
    380,526.28x = 570,740.10 × 143,838.16
  4. Step 4: Simplify right side
    380,526.28x = 82,094,205,822.22
  5. Step 5: Solve for x
    x = 82,094,205,822.22/380,526.28
  6. Step 6: Final answer
    x = 215,738.60

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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.