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Finding the Fourth Proportional to 380,437.68, 524,989.98 and 219,299.52

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Solution

The fourth proportional to 380,437.68, 524,989.98 and 219,299.52 is: 302,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,437.68 : 524,989.98 = 219,299.52 : x
  2. Step 2: Convert to fraction form
    380,437.68/524,989.98 = 219,299.52/x
  3. Step 3: Cross multiply
    380,437.68x = 524,989.98 × 219,299.52
  4. Step 4: Simplify right side
    380,437.68x = 115,130,050,618.81
  5. Step 5: Solve for x
    x = 115,130,050,618.81/380,437.68
  6. Step 6: Final answer
    x = 302,625.26

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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.