Home / 430,519.86-645,358.19-160,450.27

Finding the Fourth Proportional to 430,519.86, 645,358.19 and 160,450.27

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Solution

The fourth proportional to 430,519.86, 645,358.19 and 160,450.27 is: 240,518.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,519.86 : 645,358.19 = 160,450.27 : x
  2. Step 2: Convert to fraction form
    430,519.86/645,358.19 = 160,450.27/x
  3. Step 3: Cross multiply
    430,519.86x = 645,358.19 × 160,450.27
  4. Step 4: Simplify right side
    430,519.86x = 103,547,893,416.56
  5. Step 5: Solve for x
    x = 103,547,893,416.56/430,519.86
  6. Step 6: Final answer
    x = 240,518.27

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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.