Home / 288,005.40-432,089.10-130,230.36

Finding the Fourth Proportional to 288,005.40, 432,089.10 and 130,230.36

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Solution

The fourth proportional to 288,005.40, 432,089.10 and 130,230.36 is: 195,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,005.40 : 432,089.10 = 130,230.36 : x
  2. Step 2: Convert to fraction form
    288,005.40/432,089.10 = 130,230.36/x
  3. Step 3: Cross multiply
    288,005.40x = 432,089.10 × 130,230.36
  4. Step 4: Simplify right side
    288,005.40x = 56,271,119,045.08
  5. Step 5: Solve for x
    x = 56,271,119,045.08/288,005.40
  6. Step 6: Final answer
    x = 195,382.17

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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.