Home / 288,053.12-432,300.20-130,392.30

Finding the Fourth Proportional to 288,053.12, 432,300.20 and 130,392.30

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Solution

The fourth proportional to 288,053.12, 432,300.20 and 130,392.30 is: 195,688.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,053.12 : 432,300.20 = 130,392.30 : x
  2. Step 2: Convert to fraction form
    288,053.12/432,300.20 = 130,392.30/x
  3. Step 3: Cross multiply
    288,053.12x = 432,300.20 × 130,392.30
  4. Step 4: Simplify right side
    288,053.12x = 56,368,617,368.46
  5. Step 5: Solve for x
    x = 56,368,617,368.46/288,053.12
  6. Step 6: Final answer
    x = 195,688.27

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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.