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Finding the Fourth Proportional to 247,053, 371,075.40 and 147,407.64

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Solution

The fourth proportional to 247,053, 371,075.40 and 147,407.64 is: 221,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,053 : 371,075.40 = 147,407.64 : x
  2. Step 2: Convert to fraction form
    247,053/371,075.40 = 147,407.64/x
  3. Step 3: Cross multiply
    247,053x = 371,075.40 × 147,407.64
  4. Step 4: Simplify right side
    247,053x = 54,699,348,976.06
  5. Step 5: Solve for x
    x = 54,699,348,976.06/247,053
  6. Step 6: Final answer
    x = 221,407.35

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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.