Home / 380,042.40-569,929.20-130,666.40

Finding the Fourth Proportional to 380,042.40, 569,929.20 and 130,666.40

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Solution

The fourth proportional to 380,042.40, 569,929.20 and 130,666.40 is: 195,953.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,042.40 : 569,929.20 = 130,666.40 : x
  2. Step 2: Convert to fraction form
    380,042.40/569,929.20 = 130,666.40/x
  3. Step 3: Cross multiply
    380,042.40x = 569,929.20 × 130,666.40
  4. Step 4: Simplify right side
    380,042.40x = 74,470,596,818.88
  5. Step 5: Solve for x
    x = 74,470,596,818.88/380,042.40
  6. Step 6: Final answer
    x = 195,953.39

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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.