Home / 288,868.07-433,404.65-128,929.44

Finding the Fourth Proportional to 288,868.07, 433,404.65 and 128,929.44

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Solution

The fourth proportional to 288,868.07, 433,404.65 and 128,929.44 is: 193,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,868.07 : 433,404.65 = 128,929.44 : x
  2. Step 2: Convert to fraction form
    288,868.07/433,404.65 = 128,929.44/x
  3. Step 3: Cross multiply
    288,868.07x = 433,404.65 × 128,929.44
  4. Step 4: Simplify right side
    288,868.07x = 55,878,618,173.25
  5. Step 5: Solve for x
    x = 55,878,618,173.25/288,868.07
  6. Step 6: Final answer
    x = 193,439.93

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1.5x scale

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.