Home / 279,567.20-385,818.95-210,533.07

Finding the Fourth Proportional to 279,567.20, 385,818.95 and 210,533.07

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Solution

The fourth proportional to 279,567.20, 385,818.95 and 210,533.07 is: 290,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,567.20 : 385,818.95 = 210,533.07 : x
  2. Step 2: Convert to fraction form
    279,567.20/385,818.95 = 210,533.07/x
  3. Step 3: Cross multiply
    279,567.20x = 385,818.95 × 210,533.07
  4. Step 4: Simplify right side
    279,567.20x = 81,227,648,796.58
  5. Step 5: Solve for x
    x = 81,227,648,796.58/279,567.20
  6. Step 6: Final answer
    x = 290,547.85

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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.