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Finding the Fourth Proportional to 266,888.34, 400,075.32 and 98,316.51

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Solution

The fourth proportional to 266,888.34, 400,075.32 and 98,316.51 is: 147,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,888.34 : 400,075.32 = 98,316.51 : x
  2. Step 2: Convert to fraction form
    266,888.34/400,075.32 = 98,316.51/x
  3. Step 3: Cross multiply
    266,888.34x = 400,075.32 × 98,316.51
  4. Step 4: Simplify right side
    266,888.34x = 39,334,009,199.53
  5. Step 5: Solve for x
    x = 39,334,009,199.53/266,888.34
  6. Step 6: Final answer
    x = 147,380.02

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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.