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Finding the Fourth Proportional to 229,235.10, 343,852.65 and 145,254.30

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Solution

The fourth proportional to 229,235.10, 343,852.65 and 145,254.30 is: 217,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,235.10 : 343,852.65 = 145,254.30 : x
  2. Step 2: Convert to fraction form
    229,235.10/343,852.65 = 145,254.30/x
  3. Step 3: Cross multiply
    229,235.10x = 343,852.65 × 145,254.30
  4. Step 4: Simplify right side
    229,235.10x = 49,946,075,978.90
  5. Step 5: Solve for x
    x = 49,946,075,978.90/229,235.10
  6. Step 6: Final answer
    x = 217,881.45

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1.5x scale

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.