Home / 261,692.13-392,533.64-143,298.89

Finding the Fourth Proportional to 261,692.13, 392,533.64 and 143,298.89

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Solution

The fourth proportional to 261,692.13, 392,533.64 and 143,298.89 is: 214,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,692.13 : 392,533.64 = 143,298.89 : x
  2. Step 2: Convert to fraction form
    261,692.13/392,533.64 = 143,298.89/x
  3. Step 3: Cross multiply
    261,692.13x = 392,533.64 × 143,298.89
  4. Step 4: Simplify right side
    261,692.13x = 56,249,634,276.57
  5. Step 5: Solve for x
    x = 56,249,634,276.57/261,692.13
  6. Step 6: Final answer
    x = 214,945.84

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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.