Home / 346,717.10-520,075.65-213,164.30

Finding the Fourth Proportional to 346,717.10, 520,075.65 and 213,164.30

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Solution

The fourth proportional to 346,717.10, 520,075.65 and 213,164.30 is: 319,746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,717.10 : 520,075.65 = 213,164.30 : x
  2. Step 2: Convert to fraction form
    346,717.10/520,075.65 = 213,164.30/x
  3. Step 3: Cross multiply
    346,717.10x = 520,075.65 × 213,164.30
  4. Step 4: Simplify right side
    346,717.10x = 110,861,561,879.30
  5. Step 5: Solve for x
    x = 110,861,561,879.30/346,717.10
  6. Step 6: Final answer
    x = 319,746.45

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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.