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Finding the Fourth Proportional to 243,534.80, 336,075.40 and 134,638.67

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Solution

The fourth proportional to 243,534.80, 336,075.40 and 134,638.67 is: 185,799.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,534.80 : 336,075.40 = 134,638.67 : x
  2. Step 2: Convert to fraction form
    243,534.80/336,075.40 = 134,638.67/x
  3. Step 3: Cross multiply
    243,534.80x = 336,075.40 × 134,638.67
  4. Step 4: Simplify right side
    243,534.80x = 45,248,744,875.72
  5. Step 5: Solve for x
    x = 45,248,744,875.72/243,534.80
  6. Step 6: Final answer
    x = 185,799.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.