Home / 211,528.80-317,216.40-106,312.80

Finding the Fourth Proportional to 211,528.80, 317,216.40 and 106,312.80

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Solution

The fourth proportional to 211,528.80, 317,216.40 and 106,312.80 is: 159,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,528.80 : 317,216.40 = 106,312.80 : x
  2. Step 2: Convert to fraction form
    211,528.80/317,216.40 = 106,312.80/x
  3. Step 3: Cross multiply
    211,528.80x = 317,216.40 × 106,312.80
  4. Step 4: Simplify right side
    211,528.80x = 33,724,163,689.92
  5. Step 5: Solve for x
    x = 33,724,163,689.92/211,528.80
  6. Step 6: Final answer
    x = 159,430.60

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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.