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Finding the Fourth Proportional to 370,602.14, 555,810.21 and 142,852.05

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Solution

The fourth proportional to 370,602.14, 555,810.21 and 142,852.05 is: 214,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,602.14 : 555,810.21 = 142,852.05 : x
  2. Step 2: Convert to fraction form
    370,602.14/555,810.21 = 142,852.05/x
  3. Step 3: Cross multiply
    370,602.14x = 555,810.21 × 142,852.05
  4. Step 4: Simplify right side
    370,602.14x = 79,398,627,909.43
  5. Step 5: Solve for x
    x = 79,398,627,909.43/370,602.14
  6. Step 6: Final answer
    x = 214,242.23

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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.