Home / 288,215.04-432,272.16-130,406.40

Finding the Fourth Proportional to 288,215.04, 432,272.16 and 130,406.40

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Solution

The fourth proportional to 288,215.04, 432,272.16 and 130,406.40 is: 195,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,215.04 : 432,272.16 = 130,406.40 : x
  2. Step 2: Convert to fraction form
    288,215.04/432,272.16 = 130,406.40/x
  3. Step 3: Cross multiply
    288,215.04x = 432,272.16 × 130,406.40
  4. Step 4: Simplify right side
    288,215.04x = 56,371,056,205.82
  5. Step 5: Solve for x
    x = 56,371,056,205.82/288,215.04
  6. Step 6: Final answer
    x = 195,586.80

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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.