Home / 202,956.40-280,075.64-112,312.31

Finding the Fourth Proportional to 202,956.40, 280,075.64 and 112,312.31

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Solution

The fourth proportional to 202,956.40, 280,075.64 and 112,312.31 is: 154,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,956.40 : 280,075.64 = 112,312.31 : x
  2. Step 2: Convert to fraction form
    202,956.40/280,075.64 = 112,312.31/x
  3. Step 3: Cross multiply
    202,956.40x = 280,075.64 × 112,312.31
  4. Step 4: Simplify right side
    202,956.40x = 31,455,942,103.13
  5. Step 5: Solve for x
    x = 31,455,942,103.13/202,956.40
  6. Step 6: Final answer
    x = 154,988.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.