Home / 211,931.40-317,897.10-93,541.80

Finding the Fourth Proportional to 211,931.40, 317,897.10 and 93,541.80

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Solution

The fourth proportional to 211,931.40, 317,897.10 and 93,541.80 is: 140,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,931.40 : 317,897.10 = 93,541.80 : x
  2. Step 2: Convert to fraction form
    211,931.40/317,897.10 = 93,541.80/x
  3. Step 3: Cross multiply
    211,931.40x = 317,897.10 × 93,541.80
  4. Step 4: Simplify right side
    211,931.40x = 29,736,666,948.78
  5. Step 5: Solve for x
    x = 29,736,666,948.78/211,931.40
  6. Step 6: Final answer
    x = 140,312.70

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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.