Home / 210,075.84-290,011.68-162,221.76

Finding the Fourth Proportional to 210,075.84, 290,011.68 and 162,221.76

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Solution

The fourth proportional to 210,075.84, 290,011.68 and 162,221.76 is: 223,948.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,075.84 : 290,011.68 = 162,221.76 : x
  2. Step 2: Convert to fraction form
    210,075.84/290,011.68 = 162,221.76/x
  3. Step 3: Cross multiply
    210,075.84x = 290,011.68 × 162,221.76
  4. Step 4: Simplify right side
    210,075.84x = 47,046,205,150.16
  5. Step 5: Solve for x
    x = 47,046,205,150.16/210,075.84
  6. Step 6: Final answer
    x = 223,948.67

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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.