Home / 400,742.59-553,075.95-230,977.93

Finding the Fourth Proportional to 400,742.59, 553,075.95 and 230,977.93

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Solution

The fourth proportional to 400,742.59, 553,075.95 and 230,977.93 is: 318,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,742.59 : 553,075.95 = 230,977.93 : x
  2. Step 2: Convert to fraction form
    400,742.59/553,075.95 = 230,977.93/x
  3. Step 3: Cross multiply
    400,742.59x = 553,075.95 × 230,977.93
  4. Step 4: Simplify right side
    400,742.59x = 127,748,338,063.78
  5. Step 5: Solve for x
    x = 127,748,338,063.78/400,742.59
  6. Step 6: Final answer
    x = 318,779.04

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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.